Secondary battery



(No Model.)

J. S. SELLON.

SECONDARY BATTERY. No. 396,958. Patented Jan; 29,1889.

N. PETERS. FhchrLilhognphnr, Wad-Inglurz m;

UNITED STAT S PATENT JOHN SELLON, OF HATTON GARDEN, COUNTY OF MIDDLESEX,ENGLAND, ASSTGNOR TO THE ELECTRICAL ACC 1M ULA'JOR COMPANY, OF NElVYORK.

SE00 N DARY BATTERY.

SPECIFICATION forming part of Letters Patent No. 396,958, dated January29, 1889.

Application filed April 26, 1887. $erial No. 236,208. No model.)Patented in England September 15, 188L110. 3,987; in India August 22,1882, No. 863; in Argentine Republic November 21, 1882, No. 354; inBritish Guiana December 11, 1882,110. 197/3,l55; iuMcxico January 27,1883; in Canada March 15, 1883, No. 16,499; in Straits Settlements April26, 1883, No. in Chili June 8,1883; in Brazil June 15, 1883, Nov 53, andin Ceylon June 21, 1883 ber 21, 1882; British (Tluiana, No. 197/23,]55,1

dated December 11., 1982; Mexico, January 27, 1883; Canada, No. 10,199,dated March 15, 188 3; Chili, June 8, 1883, and Brazil, No. 53, datedJune 16, 1883,) of which the following is a specification. I

My invention relates to improvements in the construction andarrangementof battc ries, known as secondary batteries, used for thepurpose of storing electri c1 ty.

My object is to provide a plate or support which will be less subject tooxidation, and

which may be made lighter, while possessing greater rigidity orresistance to the contortion likely to be encountered in the process offormation or charging.

The improvements consist in the employment of plates or elementscomposed of two or more metals, of which lead and antimony are essentialparts, and either made to adhere by mechanical pressure or otherequivalent means or by the employment of metallic plates consisting ofalloys of lead and antimony either.- with or without the use and application of an amalgam.

The form of plate or element preferred is one having grooves,perforations, or receptacles, in or upon which the active material ormaterial to be rendered active is placed. .Several appropriate forms areshown in my English patent, No. 3,987, September 15,1881, and my UnitedStates patent, No. 259,657, June 13, 1882.

The accompanying drawings illustrate the preferred forms.

Figure 1 is a perforated plate having folds upon vertical rods in aframe.

or corrugations in which the active material is placed. 7 substantiallythe same features. liig. I} shows a modification in which the strips arestrung Fig. 1 shows an element composed of a number of perforated tubesof any suitable section supported in a frame. 1

1n the process of manufaclmrc I prefer that lead and antimony be mingledin a state of fusion. From five to twenty-five per cent. of antimonygives good results 3 but even a lower proportion of antimony maybe.successfully employed. A small amount of amalgam added to this alloymaterially aids the union, and by its presence contributes somewhat tothcbeneiicial result.

In the form shown at Figs. 1 and 2 the alloy plate (2 is provided withperforations p and folds forming cells, in and upon which thefinely-divided active nlatcrizitl-as a lead oxide or finely-dividedlead, u-is applied.

In Fig. 3 there are perforated strips of the lead alloy, S, comiectedtogether to form a frame supporting strips 5; of the same material. Torender this structure still more rigid, vertical rods r are passedthrough the strips.

In Fig. 4; there is aframc,1 containing perforated tubes t of thedescribed alloy, in and upon which the active material is placed.

Connections for eleridlrically uniting one cell with another consist ofstraps formed integral with and of the same material as the plate orsupport. I consider that a sheet of antimony and a sheet of lead unitedby pressure or equivalent. means to be within the scope of my invention.

Two or more plates consisting of the described metals and combined wit-hoxide of lead, which may be applied in the form of a paste, are placedin an electrolyticliquid and charged by subjecting them to the action ofan electric current in the usual manner.

1.do not herein claim in a secondary battery one or more plat-es,elements, or supports composed of or containing two or more metals andan amalgam thereof, nor in a secondary battery an elementcomposed ofaplate or sup- Fig. 2 is a variation comprising port containing an alloyof two or more metals With an amalgam thereof in combination with anactive material, nor do I herein claim the combination of an elementcomposed of lead, antimony, and an amalgam combined with an activematerial, as that forms the subject-matter of a divisional applicationfiled by me in the United States Patent Office June 27, 1888, Serial No.27851;.

hat I claim, and desire to secure by Letters Patent, is-

1. In a secondary battery, the combination of a positive elementcontaining" lead and antimony combined with an oxide of lead, and anegative element containing lead and antimony combined with an oxide oflead, substantially as described;

2. In a secondary battery, a plate, element, or support containing leadand antimony, in combination with an active material.

In a secondary battery, a perforated plate, element, or support composedof lead and antimony, to, in, or upon which is applied an activematerial.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN s. SELLON.

Witnesses:

W. I. W EEKS, (I. F. WATERMAN, Both of 9 Birchin Lane, London.

